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Ballast-Scraper.

Description: Patent for new and useful improvements in ballast scrapers, including instructions and illustrations.
Date: August 22, 1899
Creator: McElvaney, Charles T.
Partner: UNT Libraries Government Documents Department

Reed-Organ.

Description: Patent for reed-organs that is needed in the construction of reed-board to improve the quality and volume of the tone, produce a uniform pipe-tone throughout the different registers.
Date: December 9, 1902
Creator: Preston, Percy C.
Partner: UNT Libraries Government Documents Department

Valve Stem Packing

Description: Patent for "valve-stem packing for locomotives and steam engines." (lines 8,9) including instructions and illustrations.
Date: August 25, 1903
Creator: McComas,F. Charles
Partner: UNT Libraries Government Documents Department

Piston-Rod Connection

Description: Patent for a connector between a cross-head and a piston-rod that reduces strain by using a double taper and binder elements in line with the thrust of the piston-rod to prevent fractures and breaks as a result of the end thrust.
Date: April 17, 1906
Creator: McElvaney, Charles T.
Partner: UNT Libraries Government Documents Department

Cotton-Chopper.

Description: Patent for a cotton chopper that has advantages in point of simplicity, durability, and general efficiency because it is adapted to operate crosswise with relation to the rows.
Date: September 16, 1902
Creator: Fay, Louis Percy
Partner: UNT Libraries Government Documents Department

Reed-Organ.

Description: Patent for a cheap and simple reed-board that provides a uniform tone that is produced through the register or registers and allows the freedom of communication between the reed-cells and pipe or resonance cells.
Date: January 30, 1906
Creator: Preston, Percy C.
Partner: UNT Libraries Government Documents Department

Swab Holder

Description: Patent for improvements in swab-holders consisting of a sectional box or cup containing fibrous material to apply a lubricating oil for the piston-rod to reduce friction and wear on the rod.
Date: July 10, 1906
Creator: Bruce. J.
Partner: UNT Libraries Government Documents Department

Improvement in Steam-Engines.

Description: Patent related to "improvements in steam-engines. The object...is to devise means whereby the valves may be actuated automatically without the employment of exterior mechanisms by the use of exhaust-steam" (lines 17-22). Includes instructions and illustration.
Date: July 1, 1879
Creator: Garlock, William H. & Cooke, Richard
Partner: UNT Libraries Government Documents Department

Trolley-Controller

Description: Patent for a means to "instantly pull down the trolley-pole when its trolley jumps the conductor-wire." (line 15-17)
Date: November 24, 1903
Creator: Leecraft, Walter, B.
Partner: UNT Libraries Government Documents Department

Improvement in Rerigerator-Cars.

Description: Patent for "improvements in refrigerator-cars for preserving fresh meats, vegetables, and other perishable articles while transporting them over great distance; and it consists of an ice-receptacle at the top of the car, provided with flat top and carved or inclined bottom." (Lines 13-19) Includes instructions and illustrations.
Date: January 18, 1876
Creator: Zimmerman, Arnold W.
Partner: UNT Libraries Government Documents Department

Improvement in Riding-Saddles.

Description: Patent for improvement in riding-saddles by "which the leather straps hitherto required for the girth-riffing may be dispensed with, and in place thereof a stronger and more durable rigging obtained, that leaves the top and sides of the tree in perfectly smooth state."
Date: October 29, 1878
Creator: Nothaf, John L.
Partner: UNT Libraries Government Documents Department

Binder for Paper Tablets.

Description: Patent for improvements for tablets for blank paper, leterheads, etc. that holds content securely, including illustrations.
Date: February 25, 1879
Creator: Murray, Bredett C.
Partner: UNT Libraries Government Documents Department

Improvement in Masks for Horses and Cattle.

Description: Patent for a slitted leather mask for animals to be used for horses, cattle, etc. to deter the jumping of fences. Patent for "mask, covering the eyes of the animal, leaves him with a sufficiently free vision, and being thoroughly ventilated, will not injure his eyes".
Date: July 10, 1877
Creator: Trueblood, Albert H
Partner: UNT Libraries Government Documents Department

Bicycle Attachment.

Description: Patent for "a new and improved bicycle attachment arranged to serve as a foot-rest for the feet of the rider while coasting and adapted to be lowered to support the bicycle in a vertical position when not in use and to securely lock the wheel and support together to prevent the machine from being stolen" (lines 7-14), including illustrations.
Date: May 11, 1897
Creator: Zintgraff, August
Partner: UNT Libraries Government Documents Department

Engineer's Graduating-Valve.

Description: Patent for an graduating valve that is used with air brake systems in railroad trains. The invention is meant to "produce a comparatively simple valve which is constructed in such a way that it is not likely to clog or get out of order, which is arranged so that successive regular reductions may be easily made in the pressure of air in the train service pipe, which is adapted to automatically act on the governor of the air pipe from pressure either above or below the main valve, which is constructed in such a way that if the train parts the pressure in the main reservoir will not be reduced, which generates excess pressure when the brake handle is in running position and acts through said excess pressure on the governor of the pump, which is not likely to leak, and which in general may be easily controlled and places the train brakes under the complete control of the engineer" (lines 11-29).
Date: August 15, 1893
Creator: Pelham, Walter O.
Partner: UNT Libraries Government Documents Department

Machine for Mixing Mortar.

Description: Patent for a new and improved machine for mixing mortar. This design "consists in a cylinder composed of bars set into open heads and rotating beneath a hopper . . . so that the material to be mixed rests upon the cylinder, and is rasped or grated off by the motion of the cylinder and received on the inside of the cylinder between the bars. . . . When the material is received inside the cylinder it is carried around by the rotary motion, and is turned over and forced out" (lines 7-22).
Date: September 14, 1880
Creator: Schellenberger, Samuel L.
Partner: UNT Libraries Government Documents Department

Train-Marker and Signal-Lamp.

Description: Patent for a train-marker and engine signal-lamp meant to "provide a lamp in which the light may be differently colored and the change of color may be effected in an expeditious and convenient manner without the necessity of opening the lamp" (lines 10-14). It also provides "a guard or slide, whereby the opening through which the adjusting device passes may be closed, so as to prevent the wind from entering the body of the lamp and interfering with the flame" (lines 15-20). The lamp is meant for railroads and has two or more lenses, and is durably and inexpensively constructed. One color of light can be shown from the front and back and another from the sides.
Date: February 18, 1896
Creator: Cook, Marion P.
Partner: UNT Libraries Government Documents Department

Saddle-Stirrup.

Description: Patent for saddle stirrup, with illustrations. The invention "relates to those stirrups which are provided with foot-pieces adapted to oscillate thereupon... and at the same time provide means whereby the foot-pieces can have limited universal movement" (lines 10-15).
Date: November 21, 1882
Creator: Shellenberger, Samuel L.
Partner: UNT Libraries Government Documents Department

Improvement in Pumps.

Description: Patent relating to "improvements in double-acting pumps. The object is to devise a pump...[so] as to allow the admission of water at one end of and its discharge at the other" (lines 16-24). Includes instructions and illustration.
Date: July 1, 1879
Creator: Garlock, William H. & Cooke, Richard
Partner: UNT Libraries Government Documents Department

Improvement in Wood Pavements.

Description: Patent for a new and improved construction of Bois D'Arc Pavement, which uses two layers of planks that cross at right angle as a base, sand to hold bois d'arc blocks in place and fill gaps in between, and coal-tar covering planks to prevent sand from shifting. It includes illustrations.
Date: January 14, 1879
Creator: Shellenberger, Samuel Luther
Partner: UNT Libraries Government Documents Department

Elastic Chain

Description: Patent for this invention is to provide a chain which yield longitudinally when subjected to a tensile strain and to this end arrangement of parts, as will be herein after described and claimed. [5-10]
Date: December 3, 1889
Creator: Redwood, Charles
Partner: UNT Libraries Government Documents Department